net/mac80211/vht.c

   1 /*
   2  * VHT handling
   3  *
   4  * This program is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License version 2 as
   6  * published by the Free Software Foundation.
   7  */
   8
   9 #include <linux/ieee80211.h>
  10 #include <linux/export.h>
  11 #include <net/mac80211.h>
  12 #include "ieee80211_i.h"
  13
  14
  15 void ieee80211_vht_cap_ie_to_sta_vht_cap(struct ieee80211_sub_if_data *sdata,
  16                                          struct ieee80211_supported_band *sband,
  17                                          struct ieee80211_vht_cap *vht_cap_ie,
  18                                          struct sta_info *sta)
  19 {
  20         struct ieee80211_sta_vht_cap *vht_cap = &sta->sta.vht_cap;
  21
  22         memset(vht_cap, 0, sizeof(*vht_cap));
  23
  24         if (!sta->sta.ht_cap.ht_supported)
  25                 return;
  26
  27         if (!vht_cap_ie || !sband->vht_cap.vht_supported)
  28                 return;
  29
  30         vht_cap->vht_supported = true;
  31
  32         vht_cap->cap = le32_to_cpu(vht_cap_ie->vht_cap_info);
  33
  34         /* Copy peer MCS info, the driver might need them. */
  35         memcpy(&vht_cap->vht_mcs, &vht_cap_ie->supp_mcs,
  36                sizeof(struct ieee80211_vht_mcs_info));
  37 }